C program to check whether the given number is odd or even.

Program code

#include <stdio.h>

#include <conio.h>

void main()

{

int a;

clrscr();

printf("Please input a number to find whether it is odd or even.\n");

scanf("%d",&a);

if ((a%2)==0)

printf("%d is even.\n",a);

else

printf("%d is odd.\n",a);

getch();

}

Example of output

Please input a number to find whether it is odd or even.

700

700 is even.

C program to display all even numbers between one and ten.

Program code

#include <stdio.h>

#include <conio.h>

void main()

{

int i;

clrscr();

printf(“The even numbers between one and 10\n”);

for (i=2;i<=10;i=i+2)

printf(“%d\n”,i);

getch();

}

Output

The even numbers between one and 10

2

4

6

8

10

C program to display all even numbers from one to the given number.

Program code

#include <stdio.h>

#include <conio.h>

void main()

{

int n=0, i;

clrscr();

printf(“If you input an integer, we will display all even numbers from one to that number.\n”);

scanf(“%d”,&n);

printf(“All even numbers from one to %d are given below.\n”,n);

for (i=1;i<=n;i++)

if ((i%2)==0)

printf(“%d\n”,i);

getch();

}

Example of output

If you input an integer, we will display all even numbers from one to that number.

22

All even numbers from one to 22 are given below.

2

4

6

8

10

12

14

16

18

20

22